mscVrPpSrtBpPortPriority 1.3.6.1.4.1.562.36.2.1.100.3.9.12.1.4

This attribute specifies the value for port priority, which is contained in the first octet of the port identifier. Valid values are as follows: 1) 0..255 for stp type DEC and 2) 0..65535 for stp type IEEE.